Energy and angular distribution of alpha particles emitted in thermal-neutron fission of 235U

Y. Gazit, A. Katase, G. Ben-David, R. Moreh

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22 Scopus citations

Abstract

The energy and angular distributions of particles emitted in thermal-neutron fission of 235U have been studied in a three-parameter correlation experiment for angles between 50 and 130°. These distributions are compared with the results of trajectory calculations to get a "best fit" set of initial scission conditions. The derived initial fragment separation of 24 fm and initial average kinetic energy of 31 MeV are in good agreement with liquid-drop calculations, while the initial most probable energy was found to be 3.4 MeV. The results indicate a shift in the scission point of 1-2 fm towards the light fragment, for a variation in mass ratio between 1.1 and 2. The effect of recoil on the experimental distributions is discussed in detail.

Original languageEnglish
Pages (from-to)223-236
Number of pages14
JournalPhysical Review C - Nuclear Physics
Volume4
Issue number1
DOIs
StatePublished - 1 Jan 1971
Externally publishedYes

ASJC Scopus subject areas

  • Nuclear and High Energy Physics

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